164 Caricography. 
tratis subbidentatis tomentosis, squamz ovate acuminata 
blongz mucronate subeequalibus. 
ulm 4—16 inches high, triquetrous, scabrous above; 
leaves linear, scabrous on the edge, the culm leaves short, 
those of the previous year often longer than the culm, with 
purplish sheaths at the base; a limear bract under and 
longer than the lowest spikelet; staminate spike subtrique- 
trous, with an ovate or oblong scale obtuse or acute, bright 
brownish red, white on_the edge and keel; pistillate spikes 
one to three, commonly two, ovate, sometimes rather oblong, 
sessile or slightly pedunculate, four to eight-flowered, often 
only one spike with sometimes the rudiment of another ; stig- 
mas three ; fruit ovate-globose, short rostrate, slightly biden- 
tate, scarcely triquetrous, tomentose ; pistillate scale ovate, 
acuminate, or oblong mucronate, little longer or shorter than 
the fruit, reddish brown, white on the margin. 
Flowers in April and May—grows in the same situations 
as the preceding—common. 
This plant, when it has only one pistillate spike, resembles 
C. montana, Li. Schk. tab. F fig. 29, whose fruit is rather 
acute - It is more closely allied to C. varia. 
To those acquainted with the figures of the two species in 
Schk. they are readily known. Their general appearance is 
different—although the characters are so similar. C. margi- 
nata has a larger staminate spike, with more deeply coloured 
a 
$3 its culm is larger and more rigid ; its fruit more round 
diment of another, it is unquestionably the C, Pennsylvanica, 
- according to the description in’ Rees? Cyclop. 
107. C. gigantea. Rudge. 
Muh. no. 31. Ell. no. 31. 
Trans. Lin. Soc. VII. tab. 10, fig. 2. 
Rees’ Cyc. no. 170. 
~ C. lucustris 6 gigantea, Pursh. 
_ Spica staminifera unica vel pluribus ; spicis fructiferis tri- 
sugmaticis ternis cylindraceis sublaxifloris remotis, suprema 
sessili, inferioribus exserte p, is, fructibus globoso- 
ovatis conicis longo-rostratis nervosis inflate oleae. 16a; a 
varicatis, syuama oblongo-oyata vel ovato-lanceolata duple 
longioribus. 
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